JPH09136867A - Packaging of n-vinylcarboxylic acid amide - Google Patents
Packaging of n-vinylcarboxylic acid amideInfo
- Publication number
- JPH09136867A JPH09136867A JP29437495A JP29437495A JPH09136867A JP H09136867 A JPH09136867 A JP H09136867A JP 29437495 A JP29437495 A JP 29437495A JP 29437495 A JP29437495 A JP 29437495A JP H09136867 A JPH09136867 A JP H09136867A
- Authority
- JP
- Japan
- Prior art keywords
- acid amide
- vinylcarboxylic acid
- packaging
- vinylacetamide
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Packages (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、吸液剤、増粘剤等
に利用できるＮ−ビニルカルボン酸アミド系のポリマ−
のモノマ−として、あるいはタウリンおよびシステアミ
ン等の化学薬品の合成原料として極めて有用なＮ−ビニ
ルカルボン酸アミドを空気中の水等の影響を受けること
なく、安定的に輸送、保管することの出来るＮ−ビニル
カルボン酸アミドの包装方法および保管、輸送方法に関
するものである。TECHNICAL FIELD The present invention relates to an N-vinylcarboxylic acid amide type polymer which can be used as a liquid absorbent, a thickener and the like.
N-vinyl carboxylic acid amide, which is extremely useful as a monomer for N, or as a raw material for synthesizing chemicals such as taurine and cysteamine, can be stably transported and stored without being affected by water in the air. -It relates to a packaging method, a storage method, and a transportation method of vinylcarboxylic acid amide.
【０００２】[0002]
【従来の技術】Ｎ−ビニルカルボン酸アミドは、アセト
アルデヒド、カルボン酸アミド、及びアルコールから、
中間体であるＮ−（１−アルコキシエチル）カルボン酸
アミドを製造し、これを熱分解あるいは接触分解により
合成する方法、または、アセトアルデヒドとカルボン酸
アミドからエチリデンビスカルボン酸アミドを合成し、
これをＮ−ビニルカルボン酸アミドとカルボン酸アミド
に分解する方法により製造することが知られている。N-Vinylcarboxylic acid amides are prepared from acetaldehyde, carboxylic acid amides and alcohols.
A method of producing an intermediate N- (1-alkoxyethyl) carboxylic acid amide and synthesizing it by thermal decomposition or catalytic decomposition, or synthesizing ethylidene biscarboxylic acid amide from acetaldehyde and carboxylic acid amide,
It is known to produce this by a method of decomposing it into N-vinylcarboxylic acid amide and carboxylic acid amide.
【０００３】一般にＮ−ビニルカルボン酸アミドは、水
分の存在により加水分解を起こし、分解生成物であるカ
ルボン酸アミド、アルデヒドを生じる。さらには、分解
生成物のアルデヒドが大気中の酸素でさらに酸化されて
カルボン酸を生じる場合もある。このＮ−ビニルカルボ
ン酸アミドの加水分解は、水溶液の状態のみならず、大
気中の水分によっても起こることがある。これは、製品
の変質、並びに純度の低下をもたらす重要な問題であ
る。製品の変質や純度の低下は不純物の増加につなが
り、安全面や使用面において大きな問題である。また、
純度の低下は、Ｎ−ビニルカルボン酸アミドを重合反応
などに使用する際の収率の低下につながる。Generally, N-vinylcarboxylic acid amide is hydrolyzed in the presence of water to produce carboxylic acid amide and aldehyde which are decomposition products. Furthermore, the decomposition product aldehyde may be further oxidized by oxygen in the atmosphere to generate a carboxylic acid. The hydrolysis of the N-vinylcarboxylic acid amide may occur not only in the state of the aqueous solution but also in the atmospheric moisture. This is an important problem that causes deterioration of the product and deterioration of the purity. Deterioration of the product and deterioration of the purity lead to an increase in impurities, which is a major problem in terms of safety and use. Also,
The decrease in purity leads to a decrease in yield when N-vinylcarboxylic acid amide is used in a polymerization reaction or the like.
【０００４】このようなＮ−ビニルカルボン酸アミドの
加水分解は特に保管、輸送中に外気が高温高湿になるこ
とが顕著であり、保管、輸送上の大きな問題とされてい
る。Such hydrolysis of N-vinylcarboxylic acid amide is particularly remarkable in that the outside air becomes high temperature and high humidity during storage and transportation, which is a serious problem in storage and transportation.
【０００５】[0005]
【発明が解決しようとする課題】本発明の課題は、Ｎ−
ビニルカルボン酸アミドを空気中の水等の影響を受ける
ことなく、安定的に保管、輸送することが可能なＮ−ビ
ニルカルボン酸アミドの包装方法を開発することであ
る。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
It is an object of the present invention to develop a packaging method for N-vinylcarboxylic acid amide that can stably store and transport the vinylcarboxylic acid amide without being affected by water in the air.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、かかる状
況を鑑み、総合的に鋭意研究した結果、特定の包材を用
いてＮ−ビニルカルボン酸アミドを包装することによ
り、空気中の水等の影響を受けることなく安定的に保
管、輸送することに成功し本発明を完成させた。即ち、
本発明はＮ−ビニルカルボン酸アミドを所定の透湿度以
下の包材を用いて包装することを特徴とするＮ−ビニル
カルボン酸アミドの包装方法および保管、輸送方法であ
る。以下、本発明の方法についてさらに詳細に説明す
る。DISCLOSURE OF THE INVENTION In view of such a situation, the inventors of the present invention have conducted comprehensive and intensive studies, and as a result, by packaging N-vinylcarboxylic acid amide with a specific packaging material, The present invention has been completed by succeeding in stable storage and transportation without being affected by water and the like. That is,
The present invention is a method for packaging, storing, and transporting N-vinylcarboxylic acid amide, which is characterized in that N-vinylcarboxylic acid amide is packaged using a packaging material having a predetermined moisture permeability or less. Hereinafter, the method of the present invention will be described in more detail.
【０００７】本発明のＮ−ビニルカルボン酸アミドとし
ては、Ｎ−ビニルアセトアミド、Ｎ−ビニルプロピオン
アミドなど、常温で固体であるＮ−ビニルカルボン酸ア
ミドが挙げられ、特に産業上、保管、輸送の必要性が高
く、比較的加水分解が起りやすいＮ−ビニルアセトアミ
ドが好適である。本発明で使用される包材としては、水
蒸気の透過度（透湿度）がＪＩＳ−Ｚ−０２０８による
測定方法で２ｇ／ｍ2 ・２４ｈ以下、好ましくは０．２
〜１．５ｇ／ｍ2 ・２４ｈのものを用いる。透湿度がこ
れよりも大きいと、結晶の表面積、保管、輸送中の外気
の温度、湿度によっても異なるが、一般に空気中の水分
を透過し、Ｎ−ビニルカルボン酸アミドは吸湿し、部分
的に加水分解する可能性が高くなる傾向にある。透湿度
が０．２〜１．５ｇ／ｍ2 ・２４ｈの範囲であれば、実
用上特に加水分解による問題が解消され、使用における
利便性も良い。このような透湿度の低い包材の材質とし
ては、有機質のものとしては、ポリ塩化ビニリデンやポ
リテトラフルオロエチレン、ポリクロロトリフルオロエ
チレン、ポリフッ化ビニリデン、一酸化三フッ化エチレ
ンなどが挙げられ、また、無機質のものとしてはアル
ミ、酸化ケイ素などが挙げられる。これらの物質は、単
層フィルムとして、好ましくはヒートシール性のある物
質をラミネートし積層フィルムにしてヒートシール性を
持たせた状態で使用される。Examples of the N-vinyl carboxylic acid amide of the present invention include N-vinyl carboxylic acid amides which are solid at room temperature, such as N-vinyl acetamide and N-vinyl propionamide, and are particularly industrially used for storage and transportation. N-vinylacetamide, which is highly necessary and relatively susceptible to hydrolysis, is suitable. The packaging material used in the present invention has a water vapor permeability (moisture permeability) of 2 g / m 2 · 24 h or less, preferably 0.2 by the measuring method according to JIS-Z-0208.
~ 1.5 g / m 2 · 24h is used. When the moisture vapor transmission rate is higher than this, it generally varies depending on the surface area of the crystal, the temperature of the outside air during storage and transportation, and the humidity, but it generally permeates moisture in the air, and the N-vinylcarboxylic acid amide absorbs moisture, and partially It tends to be hydrolyzed. When the moisture vapor transmission rate is in the range of 0.2 to 1.5 g / m 2 · 24 h, practically the problem due to hydrolysis is solved and the convenience in use is good. As the material of such a low moisture permeability packaging material, as an organic material, polyvinylidene chloride, polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinylidene fluoride, ethylene monfluoride trifluoride, etc., can be mentioned. Examples of inorganic substances include aluminum and silicon oxide. These substances are used as a single-layer film, preferably in the state where heat-sealable substances are laminated to form a laminated film having heat-sealability.
【０００８】[0008]
【発明の実施の形態】単層フィルムの場合は、材質その
ものの低い透湿度が要求されるが、積層フィルムとして
使用される場合は、積層フィルムを成形する際の加工
性、接着性、コスト性などの観点から、一般には透湿度
が高いとされている材質を基材として使用することもで
きるが、成形、加工された積層フィルムとしての透湿度
は前述の値の範囲を満たしている必要がある。BEST MODE FOR CARRYING OUT THE INVENTION In the case of a single layer film, low moisture permeability of the material itself is required, but when it is used as a laminated film, processability, adhesiveness, and cost performance when molding the laminated film. From such a viewpoint, it is also possible to use a material that is generally said to have a high moisture permeability as a substrate, but the moisture permeability as a molded, processed laminated film must satisfy the above range of values. is there.
【０００９】このような積層フィルム（ラミネートフィ
ルム）の構成の例としては、ポリ三フッ化エチレン／ポ
リフッ化ビニル、ポリエチレン／ポリテトラフルオロエ
チレン、ポリアミド／フッ素樹脂／ポリエチレン、ポリ
エステル／フッ素樹脂／ポリエチレン、フッ素樹脂／ポ
リフッ化ビニル、フッ素樹脂／低密度ポリエチレン、ポ
リエチレンテレフタレート／ポリ塩化ビニリデン／無延
伸ポリプロピレン、無延伸ポリプロピレン／ポリ塩化ビ
ニリデン／無延伸ポリプロピレン、二軸延伸ポリプロピ
レン／ポリ塩化ビニリデン／二軸延伸ポリプロピレン、
ポリエチレンテレフタレート／アルミ箔／ポリエチレ
ン、低密度ポリエチレン／アルミ箔／低密度ポリエチレ
ン、ポリプロピレン／アルミ蒸着／低密度ポリエチレ
ン、ポリエチレンテレフタレート／アルミ蒸着／ポリエ
チレンテレフタレート／低密度ポリエチレン、ポリエチ
レンテレフタレート／アルミ蒸着／低密度ポリエチレ
ン、ポリエチレンテレフタレート／酸化ケイ素蒸着／低
密度ポリエチレン、ポリエチレンテレフタレート／酸化
ケイ素蒸着／ポリプロピレン等が挙げられる。Examples of the constitution of such a laminated film (laminate film) include polytrifluoroethylene / polyvinyl fluoride, polyethylene / polytetrafluoroethylene, polyamide / fluorine resin / polyethylene, polyester / fluorine resin / polyethylene, Fluorine resin / polyvinyl fluoride, fluorine resin / low density polyethylene, polyethylene terephthalate / polyvinylidene chloride / unstretched polypropylene, unstretched polypropylene / polyvinylidene chloride / unstretched polypropylene, biaxially stretched polypropylene / polyvinylidene chloride / biaxially stretched polypropylene ,
Polyethylene terephthalate / aluminum foil / polyethylene, low density polyethylene / aluminum foil / low density polyethylene, polypropylene / aluminum deposition / low density polyethylene, polyethylene terephthalate / aluminum deposition / polyethylene terephthalate / low density polyethylene, polyethylene terephthalate / aluminum deposition / low density polyethylene , Polyethylene terephthalate / silicon oxide vapor deposition / low density polyethylene, polyethylene terephthalate / silicon oxide vapor deposition / polypropylene and the like.
【００１０】単層フィルムの成形加工方法は、エキスト
ルージョン法、カレンダー法、溶液キャスティング法、
延伸フィルム法、切削法、ディスパージョン法などが挙
げられる。また、積層フィルムの成形加工方法として
は、コーティング法としてロールコーター、バーコータ
ー、ナイフコーター、スプレーコーター、ファウンテン
コーター、スロットダイコーターなどが挙げられ、ラミ
ネート法としては、押し出しラミネーション、ウェット
ラミネーション、エキストルージョンラミネーション、
コ・エキストルージョン、ドライラミネーション、ノン
ソルベントドライラミネーション、サーマルラミネーシ
ョン、ホットメルトラミネーション、金属蒸着などが挙
げれられる。単層フィルム、積層フィルム共に成形加工
方法に特に制限はなく、どの方法も用いることが出来
る。The monolayer film is formed and processed by an extrusion method, a calendar method, a solution casting method,
Examples include a stretched film method, a cutting method, and a dispersion method. Further, as a method for forming a laminated film, a coating method includes a roll coater, a bar coater, a knife coater, a spray coater, a fountain coater, a slot die coater, and the like, and a laminating method includes extrusion lamination, wet lamination, and extrusion. Lamination,
Examples include co-extrusion, dry lamination, non-solvent dry lamination, thermal lamination, hot melt lamination, and metal vapor deposition. There is no particular limitation on the molding method for both the single-layer film and the laminated film, and any method can be used.
【００１１】フィルムの膜厚としては材質によって基本
物性が異なるため、材質に応じて好ましい膜厚が異な
る。目的の防湿性を高めるためには厚い方が好ましい
が、厚すぎるとフィルムの成形加工性が悪くなり、ま
た、コストも高くなるため、透湿度が前述の値を満たす
範囲であれば、特に制限はない。例えば、アルミ蒸着を
行う場合は目的の透湿度を得るためには、３００Åから
効果が現れ、５００Å以上が好ましい。また、アルミ箔
単独で目的の透湿度を得るためには、約１５μ以上が好
ましい。As for the film thickness of the film, since the basic physical properties differ depending on the material, the preferable film thickness varies depending on the material. In order to increase the desired moisture resistance, it is preferable to be thick, but if the thickness is too thick, the moldability of the film deteriorates, and also the cost increases, so long as the moisture vapor transmission rate is within the above range, it is particularly limited. There is no. For example, in the case of performing aluminum vapor deposition, in order to obtain the desired moisture permeability, the effect appears from 300Å, and 500Å or more is preferable. Further, in order to obtain the desired moisture permeability with the aluminum foil alone, it is preferably about 15 μm or more.
【００１２】包装形態としては、一般に用いられる側面
シール袋、二方シール袋、三方シール袋、四方シール
袋、ピロー包装、ひだつき包装、ツイスト包装など密封
性が保たれるものであれば、特に制限はなく用いること
が出来る。包装を行う際の雰囲気としては、特に制限は
なく、大気中、乾燥空気中、窒素雰囲気下などにおいて
行うことが出来るが、Ｎ−ビニルカルボン酸アミドの性
質上、乾燥した雰囲気であることが望ましい。シールの
方法は使用される包材で密封に用いられている公知方法
であれば特に制限はないが、ヒートシール法が好ましい
例として挙げられる。以下本発明の実施例を示すが、本
発明の要旨を逸脱しない限りこれらの実施例に限定され
るものではない。なお、透湿度の値はＪＩＳ−Ｚ０２０
８に記載の試験方法によるものである。As for the packaging form, generally used side seal bags, two-way seal bags, three-way seal bags, four-way seal bags, pillow packages, pleated packages, twist packages, etc. It can be used without limitation. The atmosphere for packaging is not particularly limited, and it can be carried out in the air, dry air, nitrogen atmosphere or the like, but a dry atmosphere is preferable due to the nature of N-vinylcarboxylic acid amide. . The sealing method is not particularly limited as long as it is a known method used for sealing with the packaging material used, but a heat sealing method is mentioned as a preferable example. Examples of the present invention will be described below, but the present invention is not limited to these examples without departing from the gist of the present invention. The value of water vapor transmission rate is JIS-Z020.
It is based on the test method described in 8.
【００１３】[0013]
【実施例】Ｎ−ビニルアセトアミドは製品の状態で水分
含有量は０．０９重量％、分解生成物のアセトアルデヒ
ドの量は０．０１重量％以下、Ｎ−ビニルアセトアミド
の純度は９９．６重量％であった。なお、水分の定量は
カールフィッシャー法、アセトアルデヒドの定量、Ｎ−
ビニルアセトアルデヒドの純度（以下、単に「純度」と
いう）はガスクロマトグラフ法により行った。EXAMPLES N-Vinylacetamide has a water content of 0.09% by weight in the product state, the amount of acetaldehyde as a decomposition product is 0.01% by weight or less, and the purity of N-vinylacetamide is 99.6% by weight. Met. The amount of water is determined by the Karl Fischer method, the amount of acetaldehyde is determined by N-
The purity of vinyl acetaldehyde (hereinafter, simply referred to as “purity”) was measured by gas chromatography.
【００１４】［実施例１］このＮ−ビニルアセトアミド
をアルミラミネート袋（組成：ポリエチレン１３μ／ア
ルミ箔９μ／ポリエチレン２０μ、透湿度１ｇ／ｍ2 ・
２４ｈ）に入れ、ヒートシールを行い、密封した。これ
を温度４０℃、湿度７０％に保たれた恒温恒湿器中に放
置し、２８日後に包材中のＮ−ビニルアセトアミド中の
水分、分解生成物のアセトアルデヒド、純度を調べたと
ころ、水分０．１７重量％、アセトアルデヒド０．０２
重量％、純度９８．４重量％であった。なお、２８日を
経過した後のＮ−ビニルアセトアミドの外観の変化は観
察されず、結晶のべたつきもなかった。Example 1 This N-vinylacetamide was placed in an aluminum laminate bag (composition: polyethylene 13 μ / aluminum foil 9 μ / polyethylene 20 μ, moisture permeability 1 g / m 2 ·.
24h), and heat sealed. This was left in a thermo-hygrostat kept at a temperature of 40 ° C. and a humidity of 70%, and after 28 days, moisture in N-vinylacetamide in the packaging material, acetaldehyde as a decomposition product, and purity were examined. 0.17% by weight, acetaldehyde 0.02
The weight% and the purity were 98.4% by weight. No change in the appearance of N-vinylacetamide after 28 days was observed, and the crystals were not sticky.
【００１５】［実施例２］試験温度を室温の冷暗所に変
更した以外は実施例１と同様にして行った。その結果、
２８日後のＮ−ビニルアセトアミド中の水分、分解生成
物のアセトアルデヒド、純度を調べたところ、水分０．
１６重量％、アセトアルデヒド０．０２重量％、純度９
８．５重量％であった。なお、２８日後の包材中のＮ−
ビニルアセトアミドの外観の変化は観察されず、結晶の
べたつきもなかった。[Example 2] The same procedure as in Example 1 was repeated except that the test temperature was changed to a cool dark place at room temperature. as a result,
After 28 days, water in N-vinylacetamide, acetaldehyde as a decomposition product, and purity were examined.
16% by weight, acetaldehyde 0.02% by weight, purity 9
It was 8.5% by weight. In addition, N- in the packaging material after 28 days
No change in the appearance of vinylacetamide was observed, and the crystals were not sticky.
【００１６】［実施例３］包材をフッ素樹脂シート（組
成：フッ素樹脂５１μ／低密度ポリエチレン５１μ、透
湿度０．６ｇ／ｍ2 ・２４ｈ）に変更した以外は実施例
１と同様にして行った。その結果、２８日後のＮ−ビニ
ルアセトアミド中の水分、分解生成物のアセトアルデヒ
ド、純度を調べたところ、水分０．１５重量％、アセト
アルデヒド０．０２重量％、純度９８．５重量％であっ
た。なお、２８日後の包材中のＮ−ビニルアセトアミド
の外観の変化は観察されず、結晶のべたつきもなかっ
た。[Example 3] The same procedure as in Example 1 was repeated except that the packaging material was changed to a fluororesin sheet (composition: fluororesin 51μ / low-density polyethylene 51μ, moisture permeability 0.6g / m 2 · 24h). It was As a result, the water content in the N-vinylacetamide after 28 days, the acetaldehyde of the decomposition product, and the purity were examined. As a result, the water content was 0.15% by weight, the acetaldehyde was 0.02% by weight, and the purity was 98.5% by weight. Note that no change in the appearance of N-vinylacetamide in the packaging material after 28 days was observed, and the crystals were not sticky.
【００１７】［比較例１］実施例に使用したものと同じ
Ｎ−ビニルアセトアミドをポリエチレン単層袋（組成：
低密度ポリエチレン４０μ、透湿度１９ｇ／ｍ2 ・２４
ｈ）に入れ、ヒートシールを行い、密封した。これを温
度４０℃、湿度７０％に保たれた恒温恒湿器中に放置
し、２８日後に包材中のＮ−ビニルアセトアミド中の水
分、アセトアルデヒド、純度を調べたところ、水分１
６．４重量％、アセトアルデヒド１２．２重量％、純度
７１．１重量％であった。なお、２８日後の包材中のＮ
−ビニルアセトアミドは液状となっており製品としては
使用が困難な状態であった。また、強いアルデヒド臭が
した。[Comparative Example 1] The same N-vinylacetamide as that used in the examples was used as a polyethylene single layer bag (composition:
Low density polyethylene 40μ, moisture permeability 19g / m 2 · 24
It was put in h), heat-sealed, and sealed. This was left in a thermo-hygrostat kept at a temperature of 40 ° C. and a humidity of 70%, and after 28 days, the water content, acetaldehyde and purity in the N-vinylacetamide in the packaging material were examined.
The content was 6.4% by weight, acetaldehyde 12.2% by weight, and purity 71.1% by weight. In addition, N in the packaging material after 28 days
-Vinylacetamide was in a liquid state and was difficult to use as a product. There was also a strong aldehyde odor.
【００１８】［比較例２］包材をポリエチレンラミネー
ト袋（組成：ナイロン１５μ／低密度ポリエチレン８０
μ、透湿度４ｇ／ｍ2 ・２４ｈ）に変更した以外は比較
例１と同様の操作を行った。２８日後のＮ−ビニルアセ
トアミド中の水分、アセトアルデヒド、純度を調べたと
ころ、水分１４．７重量％、アセトアルデヒド６．５重
量％、純度７８．５重量％であった。なお、２８日後の
包材中のＮ−ビニルアセトアミドは比較例１と同様に液
状となっており製品としては使用が困難な状態であっ
た。また、強いアルデヒド臭がした。[Comparative Example 2] A polyethylene laminate bag (composition: nylon 15μ / low density polyethylene 80) was used as a packaging material.
μ and water vapor permeability 4 g / m 2 · 24 h) except that the same operation as in Comparative Example 1 was performed. When water, acetaldehyde and purity in N-vinylacetamide after 28 days were examined, water was 14.7% by weight, acetaldehyde was 6.5% by weight and purity was 78.5% by weight. The N-vinylacetamide in the packaging material after 28 days was in a liquid state as in Comparative Example 1, and it was difficult to use as a product. There was also a strong aldehyde odor.
【００１９】［比較例３］包材をＯＰＰ袋（組成：二軸
延伸ポロプロピレン２０μ／アクリルコーティング３
μ、透湿度５ｇ／ｍ2 ・２４ｈ）に変更した以外は比較
例１と同様の操作を行った。２８日後のＮ−ビニルアセ
トアミド中の水分、アセトアルデヒド、純度を調べたと
ころ、水分９．５重量％、アセトアルデヒド７．４重量
％、純度８２．８重量％であった。なお、２８日後の包
材中のＮ−ビニルアセトアミドは同様に液状となってお
り製品としては使用が困難な状態であった。また、強い
アルデヒド臭がした。[Comparative Example 3] An OPP bag (composition: biaxially stretched polypropylene 20 μ / acrylic coating 3)
[mu] and water vapor permeability 5 g / m < 2 > · 24 h), except that the same operation as in Comparative Example 1 was performed. When water, acetaldehyde and purity in N-vinylacetamide after 28 days were examined, the water content was 9.5% by weight, acetaldehyde 7.4% by weight and purity 82.8% by weight. Note that N-vinylacetamide in the packaging material after 28 days was also in a liquid state, which made it difficult to use as a product. There was also a strong aldehyde odor.
【００２０】［比較例４］試験温度を室温の冷暗所に変
更した以外は比較例１と同様にして行った。その結果、
２８日後のＮ−ビニルアセトアミド中の水分、アセトア
ルデヒド、純度を調べたところ、水分０．４２重量％、
アセトアルデヒド０．３２重量％、純度９７．５重量％
であった。なお、２８日後の包材中のＮ−ビニルアセト
アミドの外観は固体ではあったが、吸湿が認められた。[Comparative Example 4] The procedure of Comparative Example 1 was repeated except that the test temperature was changed to a room temperature in a cool dark place. as a result,
When water, acetaldehyde and purity in N-vinylacetamide after 28 days were examined, the water content was 0.42% by weight,
Acetaldehyde 0.32% by weight, purity 97.5% by weight
Met. The appearance of N-vinylacetamide in the packaging material after 28 days was solid, but moisture absorption was observed.
【００２１】[0021]
【発明の効果】本発明は、Ｎ−ビニルカルボン酸アミド
を透湿度が２ｇ／ｍ2 ・２４ｈ以下の包材を用いて包装
することにより、空気中の水等の影響を受けることな
く、安定的に輸送、保管することの出来るＮ−ビニルカ
ルボン酸アミドの包装方法および保管、輸送方法を提供
する。INDUSTRIAL APPLICABILITY According to the present invention, N-vinylcarboxylic acid amide is packaged in a packaging material having a moisture permeability of 2 g / m 2 · 24 h or less, so that it is stable without being affected by water in the air or the like. Provided are a packaging method, a storage method, and a transportation method of N-vinylcarboxylic acid amide, which can be physically transported and stored.
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成７年１１月２８日[Submission date] November 28, 1995
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１３[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１３】[0013]
【実施例】Ｎ−ビニルアセトアミドは製品の状態で水分
含有量は０．０９重量％、分解生成物のアセトアルデヒ
ドの量は０．０１重量％以下、Ｎ−ビニルアセトアミド
の純度は９９．６重量％であった。なお、水分の定量は
カールフィッシャー法、アセトアルデヒドの定量、Ｎ−
ビニルアセトアミドの純度（以下、単に「純度」とい
う）はガスクロマトグラフ法により行った。EXAMPLES N-Vinylacetamide has a water content of 0.09% by weight in the product state, the amount of acetaldehyde as a decomposition product is 0.01% by weight or less, and the purity of N-vinylacetamide is 99.6% by weight. Met. The amount of water is determined by the Karl Fischer method, the amount of acetaldehyde is determined by N-
The purity of vinylacetamide (hereinafter, simply referred to as “purity”) was determined by gas chromatography.
Claims (4)
Ｚ−０２０８の試験法で測定した透湿度が２ｇ／ｍ2 ・
２４ｈ以下の包材に入れ密封することを特徴とするＮ−
ビニルカルボン酸アミドの包装方法。1. An N-vinylcarboxylic acid amide according to JIS-
The moisture permeability measured by the Z-0208 test method is 2 g / m 2 ·
N-, characterized by being put in a packaging material for 24 hours or less and hermetically sealed
Packaging method of vinyl carboxylic acid amide.
Ｚ−０２０８の試験法で測定した透湿度が２ｇ／ｍ2 ・
２４ｈ以下のラミネートフィルムからなる包材に入れ、
ヒートシールして密封することを特徴とするＮ−ビニル
カルボン酸アミドの包装方法。2. An N-vinylcarboxylic acid amide according to JIS-
The moisture permeability measured by the Z-0208 test method is 2 g / m 2 ·
Put in a packaging material consisting of a laminated film for 24 hours or less,
A method for packaging N-vinylcarboxylic acid amide, which comprises heat-sealing.
ルアセトアミドである請求項１または２記載のＮ−ビニ
ルカルボン酸アミドの包装方法。3. The method for packaging N-vinylcarboxylic acid amide according to claim 1, wherein the N-vinylcarboxylic acid amide is N-vinylacetamide.
装されたＮ−ビニルカルボン酸アミドを保管または輸送
することを特徴とするＮ−ビニルカルボン酸アミドの保
管、輸送方法。4. A method for storing and transporting N-vinylcarboxylic acid amide, which comprises storing or transporting the N-vinylcarboxylic acid amide packaged by the packaging method according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29437495A JPH09136867A (en) | 1995-11-13 | 1995-11-13 | Packaging of n-vinylcarboxylic acid amide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29437495A JPH09136867A (en) | 1995-11-13 | 1995-11-13 | Packaging of n-vinylcarboxylic acid amide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09136867A true JPH09136867A (en) | 1997-05-27 |
Family
ID=17806899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29437495A Pending JPH09136867A (en) | 1995-11-13 | 1995-11-13 | Packaging of n-vinylcarboxylic acid amide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09136867A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002022465A1 (en) * | 2000-09-14 | 2002-03-21 | Nippon Paper Industries Co., Ltd. | Package of solid chlorinated polyolefin modified with carboxylic acid anhydride and method of storing the solid |
-
1995
- 1995-11-13 JP JP29437495A patent/JPH09136867A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002022465A1 (en) * | 2000-09-14 | 2002-03-21 | Nippon Paper Industries Co., Ltd. | Package of solid chlorinated polyolefin modified with carboxylic acid anhydride and method of storing the solid |
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